The following are some statements about adsorption of solutes from the solutions.
A) Increase in the surface area of the adsorbent increases the extent of adsorption.
B) Increase in temperature decreases the extent of adsorption.
C) The extent of adsorption (x/m) is related to the molar concentration of solution (c) by x/m = k.c^1/n
The correct combination is

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Only (B) and (C)

All are correct

Only (A) and (C)

Only (A) and B

answer is D.

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Detailed Solution

A) extent of adsorption $\propto$ surface area of adsorbent

B) extent of adsorption of dissolved solute particles of a solution on the surface of adsorbent is a physical adsorption and it decreases with increase in temperature

C) The extent of adsorption depends on the concentration (C) of the solute in the solution. Freundlich adsorption isotherm for adsorption of solute from solution is $\log \frac{x}{m} = \frac{1}{n} \log C + logK$ ; C=concentration of solution

$∴$ A,B,C are correct.

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